Aalatettix lini, Cao, Cheng-Quan, Shi, Jian-Ping & Yin, Zhan, 2016

Cao, Cheng-Quan, Shi, Jian-Ping & Yin, Zhan, 2016, Discovery of a new species and key to all known species of the genus Aalatettix Zheng & Mao (Orthoptera, Tetrigoidea, Tetrigidae) from China, Zootaxa 4097 (1), pp. 143-146 : 143-144

Aalatettix lini sp. n. (Figs. A–G)

Holotype: ♂, paratypes 1♀, 4 ♂, Taiwan, Nantou, Piluchi (N 24°14′, E 121°15′, 2100m) 1998-5-19, collected by Prof. Lin Cheng-Shing and Mr. Yang Wan-Tong

Male (Figs. A–D). Body small in size. Head shorter than pronotum. Front oblique, frontal costa distinctly concave before lateral ocelli in profile, frontal ridge with longitudinal groove entirely, width of frontal ridge narrower than width of first segment of antenna. Vertex shorter, protruding over the anterior margin of eyes, its widest 2.5 times diameter of eye. Eye not protruding above pronotum. Antennae slender, located under lower margin of eyes, length of a segment in the middle of antennae is about 4.0 times of width. Upper margin of pronotum slightly elevated near anterior part, anterior margin of pronotum protruding into obtuse angle, reaching 2/5 part of eye; lateral carinae contracted backward, posterior margin of lateral lobe of pronotum with 2 concaves and posterior apex of lower margin rounded, the apex of pronotum without a triangular concave, hind process of pronotum reaching 2/3 of hind femur, not reaching the end of epiproct. Wings absent. Lower margin of median femur waved. Upper keel of hind femur smooth, Hind tibia with 9 spines on outer side and 8 spines on inner side. First segment of hind tarsus longer than third one, arolium of tarsus very small. Cercus conical. Subgenital plate triangular, apex acute.

Female (Figs. E–G). Body larger than male. Vertex protruding over the anterior margin of eyes, its maximum width 3.0 times diameter of eye. Pronotum shorter, reaching 7th abdominal tergite only. Ovipositor valves narrower, length of upper valve is 4.0 times its width. Others as the same as male.

Coloration: body yellowish-brown.

Measurements (mm). Length of body: ♂ 7.8 – 8.8, ♀10.5. Length of pronotum: ♂ 5.7 – 6.4, ♀ 6.7. Length of hind femur: ♂ 4.8 – 5.6, ♀ 5.4.

The new species is allied to Aalatettix hupinshanensis Zheng, 2005 , the major differences are listed in Table 1 .

Etymology. The specific epithet is named after Prof. Lin Cheng-Shing for his contribution to entomology.

FIGURES A–G Aalatettix lini sp. nov. A. Antenna ♂; B. Head in dorsal view ♂; C. Body in lateral view ♂.; D. Frontal ridge ♂; E. Body in lateral view ♀; F. Head in dorsal view ♀; G. End of abdomen in lateral view ♀.

Tables

TABLE 1. Comparison of Aalatettix lini sp. n. and A. hupinshanensis Zheng, 2005.

	Aalatettix lini sp.n.	A. hupinshanensis Zheng, 2005
Longitudinal furrow of frontal ridge	narrower than the first segment of antennae	wider than the first segment of antennae
Width of vertex	2.5 times in male and 3.0 times in female width of eye	1.5 times width of eye
Lateral carinae of prozona	contracted backward	parallel
Anterior margin of pronotum	reaching 2/5 part of eye	not reaching posterior margin of eye
Hind process of pronotum	reaching 2/3 of hind femur	reaching 4/5 of hind femur
Median femur	lower margin waved	lower margin almost straight